Finding the Fourth Proportional to 2,378,292.60, 3,282,027.12 and 1,290,536.55
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Solution
The fourth proportional to 2,378,292.60, 3,282,027.12 and 1,290,536.55 is: 1,780,931.39
Step by Step Solution
- Step 1: Write the proportion equation
2,378,292.60 : 3,282,027.12 = 1,290,536.55 : x - Step 2: Convert to fraction form
2,378,292.60/3,282,027.12 = 1,290,536.55/x - Step 3: Cross multiply
2,378,292.60x = 3,282,027.12 × 1,290,536.55 - Step 4: Simplify right side
2,378,292.60x = 4,235,575,956,451.24 - Step 5: Solve for x
x = 4,235,575,956,451.24/2,378,292.60 - Step 6: Final answer
x = 1,780,931.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.